Remy 21031 Alternator

Remanufactured Alternator for GM 105-Amp Applications

The Remy 21031 is a premium remanufactured 12-volt alternator built for select GM vehicles with a 105-amp charging system. It uses an internal voltage regulator, internal fan, clockwise rotation, and includes the pulley for a direct replacement setup.

Compatible With 1994-1997 Chevrolet Lumina, 1994-1997 Chevrolet Monte Carlo, 1994-1996 Oldsmobile Cutlass Supreme, and 1994-1996 Pontiac Grand Prix when the vehicle is equipped with the 105-amp configuration.

Key Features

• 105-amp amperage rating for specified charging-system applications
• 12-volt remanufactured alternator
• Internal voltage regulator for integrated control
• Internal fan design
• Pulley included
• Clockwise rotation
• OE manufacturer reference: Delco/Delphi
• Remy Premium Remanufactured line

Product Details

Remy 21031 is a remanufactured alternator engineered for GM platforms that use a 105-amp charging setup. This unit is a direct-fit electrical replacement for select Chevrolet Lumina and Monte Carlo models, along with Oldsmobile Cutlass Supreme and Pontiac Grand Prix applications listed in the fitment data. The Premium Remanufactured line focuses on restoring the alternator to service-ready condition for vehicles that need stable charging performance and consistent voltage regulation.

This part cross-references Delco/Delphi applications such as 10463412 and 10463965 for the same application.

What It Helps Fix

• Battery warning light related to charging-system output
• Low-voltage conditions while driving
• Battery drain caused by alternator underperformance
• Dim lights or electrical instability from weak charging output
• Charging failure on 105-amp GM applications

Installation Notes and Tips

• Verify the vehicle uses a 105-amp charging system before ordering.
• Confirm pulley style and clockwise rotation match the original unit.
• Check the OE part number and connector layout against the removed alternator.
• Inspect the battery, belt, and charging cables during installation to avoid repeat charging issues.
• Fits 1997 Chevrolet Lumina, N/A; 1994-1995 Chevrolet Lumina, N/A; 1997 Chevrolet Monte Carlo, N/A; 1994-1996 Oldsmobile Cutlass Supreme, N/A; 1994-1996 Pontiac Grand Prix, N/A; 1995 Chevrolet Monte Carlo, N/A.

Quality Assurance

Remy Premium Remanufactured parts are remanufactured to meet the needs of OE-style replacement service. OE manufacturer reference information is Delco/Delphi, and the part number 21031 is listed for the specified GM charging-system applications.